All Sundays
January: January 1* and the 3rd Monday
February: The 3rd Monday
May: The last Monday
July: July 4*
September: The 1st Monday
November: November 11* and the 4th Thursday
December: December 25*

*If a date above falls on a Sunday, the Monday that follows is a free parking day.

Time-limits are also not enforced on Sundays and holidays, unless specifically stated.